There is more than one band with the name Rosetta.
1. Philadelphia quartet Rosetta push the boundaries between post-hardcore, sludge, post-metal, progressive rock, post-rock, ambient, and space rock, with influences as diverse as Neurosis, Isis, My Bloody Valentine, Frodus, and Stars of the Lid. The band somewhat humorously self-describes its music as "metal for astronauts", and its members are very interested in astronomy and space travel. Their first album (The Galilean Satellites